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GeomConvert_CurveToAnaCurve, GeomConvert_SurfToAnaSurf - geometrical algorithms for converting geometrical curve and surfaces in canonical geometry with given tolerance. ShapeAnalysis_CanonicalRecognition - interface for checking canonical geometry.
170 lines
6.4 KiB
C++
170 lines
6.4 KiB
C++
// Copyright (c) 2022 OPEN CASCADE SAS
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//
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// This file is part of Open CASCADE Technology software library.
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//
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// This library is free software; you can redistribute it and/or modify it under
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// the terms of the GNU Lesser General Public License version 2.1 as published
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// by the Free Software Foundation, with special exception defined in the file
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// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
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// distribution for complete text of the license and disclaimer of any warranty.
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//
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// Alternatively, this file may be used under the terms of Open CASCADE
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// commercial license or contractual agreement.
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#ifndef _ShapeAnalysis_CanonicalRecognition_HeaderFile
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#define _ShapeAnalysis_CanonicalRecognition_HeaderFile
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#include <Standard.hxx>
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#include <Standard_DefineAlloc.hxx>
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#include <Standard_Handle.hxx>
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#include <Standard_Boolean.hxx>
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#include <Standard_Integer.hxx>
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#include <TopAbs_ShapeEnum.hxx>
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#include <TopoDS_Shape.hxx>
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#include <TopoDS_Shell.hxx>
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#include <TopoDS_Face.hxx>
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#include <TopoDS_Wire.hxx>
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#include <TopoDS_Edge.hxx>
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#include <GeomAbs_SurfaceType.hxx>
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#include <GeomAbs_CurveType.hxx>
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#include <GeomConvert_ConvType.hxx>
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#include <TColStd_Array1OfReal.hxx>
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class gp_Pln;
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class gp_Cone;
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class gp_Cylinder;
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class gp_Sphere;
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class gp_Lin;
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class gp_Circ;
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class gp_Elips;
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class Geom_Curve;
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class Geom_Surface;
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//! This class provides operators for analysis surfaces and curves of shapes
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//! in order to find out more simple geometry entities, which could replace
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//! existing complex (for exampe, BSpline) geometry objects with given tolerance.
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class ShapeAnalysis_CanonicalRecognition
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{
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public:
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DEFINE_STANDARD_ALLOC
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//! Empty constructor
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Standard_EXPORT ShapeAnalysis_CanonicalRecognition();
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//! constructor with shape initialisation
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Standard_EXPORT ShapeAnalysis_CanonicalRecognition(const TopoDS_Shape& theShape);
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//! Sets shape
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Standard_EXPORT void SetShape(const TopoDS_Shape& theShape);
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//! Returns input shape
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const TopoDS_Shape& GetShape() const
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{
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return myShape;
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}
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//! Returns deviation between input geometry entity and analytical entity
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Standard_Real GetGap() const
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{
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return myGap;
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}
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//! Returns status of operation.
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//! Current meaning of possible values of status:
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//! -1 - algorithm is not initalazed by shape
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//! 0 - no errors
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//! 1 - error during any operation (usually - because of wrong input data)
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//! Any operation (calling any methods like IsPlane(...), ...) can be performed
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//! when current staue is equal 0.
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//! If after any operation status != 0, it is necessary to set it 0 by method ClearStatus()
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//! before calling other operation.
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Standard_Integer GetStatus() const
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{
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return myStatus;
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}
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//! Returns status to be equal 0.
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void ClearStatus()
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{
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myStatus = 0;
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}
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//! Returns true if the underlined surface can be represent by plane with tolerance theTol
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//! and sets in thePln the result plane.
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Standard_EXPORT Standard_Boolean IsPlane(const Standard_Real theTol, gp_Pln& thePln);
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//! Returns true if the underlined surface can be represent by cylindrical one with tolerance theTol
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//! and sets in theCyl the result cylinrical surface.
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Standard_EXPORT Standard_Boolean IsCylinder(const Standard_Real theTol, gp_Cylinder& theCyl);
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//! Returns true if the underlined surface can be represent by conical one with tolerance theTol
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//! and sets in theCone the result conical surface.
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Standard_EXPORT Standard_Boolean IsCone(const Standard_Real theTol, gp_Cone& theCone);
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//! Returns true if the underlined surface can be represent by spherical one with tolerance theTol
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//! and sets in theSphere the result spherical surface.
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Standard_EXPORT Standard_Boolean IsSphere(const Standard_Real theTol, gp_Sphere& theSphere);
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//! Returns true if the underlined curve can be represent by line with tolerance theTol
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//! and sets in theLin the result line.
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Standard_EXPORT Standard_Boolean IsLine(const Standard_Real theTol, gp_Lin& theLin);
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//! Returns true if the underlined curve can be represent by circle with tolerance theTol
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//! and sets in theCirc the result circle.
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Standard_EXPORT Standard_Boolean IsCircle(const Standard_Real theTol, gp_Circ& theCirc);
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//! Returns true if the underlined curve can be represent by ellipse with tolerance theTol
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//! and sets in theCirc the result ellipse.
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Standard_EXPORT Standard_Boolean IsEllipse(const Standard_Real theTol, gp_Elips& theElips);
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private:
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Standard_Boolean IsElementarySurf(const GeomAbs_SurfaceType theTarget, const Standard_Real theTol,
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gp_Ax3& thePos, TColStd_Array1OfReal& theParams);
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Standard_Boolean IsConic(const GeomAbs_CurveType theTarget, const Standard_Real theTol,
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gp_Ax2& thePos, TColStd_Array1OfReal& theParams);
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static Handle(Geom_Surface) GetSurface(const TopoDS_Face& theFace, const Standard_Real theTol,
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const GeomConvert_ConvType theType, const GeomAbs_SurfaceType theTarget,
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Standard_Real& theGap, Standard_Integer& theStatus);
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static Handle(Geom_Surface) GetSurface(const TopoDS_Shell& theShell, const Standard_Real theTol,
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const GeomConvert_ConvType theType, const GeomAbs_SurfaceType theTarget,
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Standard_Real& theGap, Standard_Integer& theStatus);
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static Handle(Geom_Surface) GetSurface(const TopoDS_Edge& theEdge, const Standard_Real theTol,
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const GeomConvert_ConvType theType, const GeomAbs_SurfaceType theTarget,
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gp_Ax3& thePos, TColStd_Array1OfReal& theParams,
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Standard_Real& theGap, Standard_Integer& theStatus);
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static Handle(Geom_Surface) GetSurface(const TopoDS_Wire& theWire, const Standard_Real theTol,
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const GeomConvert_ConvType theType, const GeomAbs_SurfaceType theTarget,
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gp_Ax3& thePos, TColStd_Array1OfReal& theParams,
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Standard_Real& theGap, Standard_Integer& theStatus);
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static Handle(Geom_Curve) GetCurve(const TopoDS_Edge& theEdge, const Standard_Real theTol,
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const GeomConvert_ConvType theType, const GeomAbs_CurveType theTarget,
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Standard_Real& theGap, Standard_Integer& theStatus);
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static Standard_Boolean GetSurfaceByLS(const TopoDS_Wire& theWire, const Standard_Real theTol,
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const GeomAbs_SurfaceType theTarget,
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gp_Ax3& thePos, TColStd_Array1OfReal& theParams,
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Standard_Real& theGap, Standard_Integer& theStatus);
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void Init(const TopoDS_Shape& theShape);
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private:
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TopoDS_Shape myShape;
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TopAbs_ShapeEnum mySType;
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Standard_Real myGap;
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Standard_Integer myStatus;
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};
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#endif // _ShapeAnalysis_CanonicalRecognition_HeaderFile
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